root / trunk / Pithos.Core / Agents / StatusAgent.cs @ 0397f6ec
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#region |
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/* ----------------------------------------------------------------------- |
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* <copyright file="StatusAgent.cs" company="GRNet"> |
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* |
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* Copyright 2011-2012 GRNET S.A. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* |
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* The views and conclusions contained in the software and |
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* documentation are those of the authors and should not be |
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* interpreted as representing official policies, either expressed |
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* or implied, of GRNET S.A. |
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* </copyright> |
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* ----------------------------------------------------------------------- |
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*/ |
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#endregion |
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using System; |
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using System.Collections.Generic; |
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using System.ComponentModel.Composition; |
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using System.Data; |
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using System.Data.SQLite; |
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using System.Diagnostics; |
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using System.Diagnostics.Contracts; |
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using System.IO; |
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using System.Linq; |
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using System.Reflection; |
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using System.Security.Cryptography; |
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using System.Text; |
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using System.Threading; |
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using System.Threading.Tasks; |
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using Castle.ActiveRecord; |
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using Castle.ActiveRecord.Framework; |
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using Castle.ActiveRecord.Framework.Config; |
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using Castle.ActiveRecord.Queries; |
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using NHibernate; |
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using NHibernate.ByteCode.Castle; |
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using NHibernate.Cfg; |
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using NHibernate.Cfg.Loquacious; |
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using NHibernate.Dialect; |
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using NHibernate.Exceptions; |
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using Pithos.Interfaces; |
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using Pithos.Network; |
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using log4net; |
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using Environment = System.Environment; |
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|
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namespace Pithos.Core.Agents |
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{ |
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[Export(typeof(IStatusChecker)),Export(typeof(IStatusKeeper))] |
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public class StatusAgent:IStatusChecker,IStatusKeeper |
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{ |
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private static readonly ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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|
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[System.ComponentModel.Composition.Import] |
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public IPithosSettings Settings { get; set; } |
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|
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[System.ComponentModel.Composition.Import] |
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public IStatusNotification StatusNotification { get; set; } |
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|
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private Agent<Action> _persistenceAgent; |
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|
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|
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|
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public StatusAgent() |
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{ |
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var appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); |
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|
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_pithosDataPath = Path.Combine(appDataPath , "GRNET\\PITHOS"); |
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if (!Directory.Exists(_pithosDataPath)) |
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Directory.CreateDirectory(_pithosDataPath); |
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|
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var dbPath = Path.Combine(_pithosDataPath, "pithos.db"); |
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|
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MigrateOldDb(dbPath, appDataPath); |
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|
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|
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var source = GetConfiguration(_pithosDataPath); |
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ActiveRecordStarter.Initialize(source,typeof(FileState),typeof(FileTag)); |
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|
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ActiveRecordStarter.UpdateSchema(); |
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|
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|
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if (!File.Exists(dbPath)) |
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ActiveRecordStarter.CreateSchema(); |
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|
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CreateTrigger(); |
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|
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} |
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|
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|
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private static void MigrateOldDb(string dbPath, string appDataPath) |
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{ |
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if(String.IsNullOrWhiteSpace(dbPath)) |
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throw new ArgumentNullException("dbPath"); |
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if(String.IsNullOrWhiteSpace(appDataPath)) |
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throw new ArgumentNullException("appDataPath"); |
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Contract.EndContractBlock(); |
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|
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var oldDbPath = Path.Combine(appDataPath, "Pithos", "pithos.db"); |
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var oldDbInfo = new FileInfo(oldDbPath); |
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if (oldDbInfo.Exists && !File.Exists(dbPath)) |
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{ |
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Log.InfoFormat("Moving database from {0} to {1}",oldDbInfo.FullName,dbPath); |
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var oldDirectory = oldDbInfo.Directory; |
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oldDbInfo.MoveTo(dbPath); |
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|
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if (Log.IsDebugEnabled) |
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Log.DebugFormat("Deleting {0}",oldDirectory.FullName); |
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|
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oldDirectory.Delete(true); |
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} |
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} |
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|
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private void CreateTrigger() |
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{ |
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using (var connection = GetConnection()) |
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using (var triggerCommand = connection.CreateCommand()) |
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{ |
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var cmdText = new StringBuilder() |
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.AppendLine("CREATE TRIGGER IF NOT EXISTS update_last_modified UPDATE ON FileState FOR EACH ROW") |
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.AppendLine("BEGIN") |
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.AppendLine("UPDATE FileState SET Modified=datetime('now') WHERE Id=old.Id;") |
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.AppendLine("END;") |
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.AppendLine("CREATE TRIGGER IF NOT EXISTS insert_last_modified INSERT ON FileState FOR EACH ROW") |
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.AppendLine("BEGIN") |
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.AppendLine("UPDATE FileState SET Modified=datetime('now') WHERE Id=new.Id;") |
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.AppendLine("END;") |
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.ToString(); |
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triggerCommand.CommandText = cmdText; |
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triggerCommand.ExecuteNonQuery(); |
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} |
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} |
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|
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|
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private static InPlaceConfigurationSource GetConfiguration(string pithosDbPath) |
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{ |
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if (String.IsNullOrWhiteSpace(pithosDbPath)) |
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throw new ArgumentNullException("pithosDbPath"); |
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if (!Path.IsPathRooted(pithosDbPath)) |
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throw new ArgumentException("path must be a rooted path", "pithosDbPath"); |
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Contract.EndContractBlock(); |
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|
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var properties = new Dictionary<string, string> |
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{ |
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{"connection.driver_class", "NHibernate.Driver.SQLite20Driver"}, |
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{"dialect", "NHibernate.Dialect.SQLiteDialect"}, |
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{"connection.provider", "NHibernate.Connection.DriverConnectionProvider"}, |
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{ |
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"proxyfactory.factory_class", |
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"NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle" |
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}, |
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}; |
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|
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var connectionString = String.Format(@"Data Source={0}\pithos.db;Version=3;Enlist=N", pithosDbPath); |
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properties.Add("connection.connection_string", connectionString); |
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|
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var source = new InPlaceConfigurationSource(); |
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source.Add(typeof (ActiveRecordBase), properties); |
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source.SetDebugFlag(false); |
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return source; |
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} |
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|
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public void StartProcessing(CancellationToken token) |
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{ |
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_persistenceAgent = Agent<Action>.Start(queue => |
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{ |
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Action loop = null; |
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loop = () => |
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{ |
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var job = queue.Receive(); |
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job.ContinueWith(t => |
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{ |
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var action = job.Result; |
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try |
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{ |
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action(); |
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} |
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catch (SQLiteException ex) |
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{ |
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Log.ErrorFormat("[ERROR] SQL \n{0}", ex); |
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} |
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catch (Exception ex) |
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{ |
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Log.ErrorFormat("[ERROR] STATE \n{0}", ex); |
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} |
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queue.NotifyComplete(action); |
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// ReSharper disable AccessToModifiedClosure |
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queue.DoAsync(loop); |
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// ReSharper restore AccessToModifiedClosure |
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}); |
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}; |
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loop(); |
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}); |
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|
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} |
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|
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|
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|
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public void Stop() |
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{ |
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_persistenceAgent.Stop(); |
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} |
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|
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|
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public void ProcessExistingFiles(IEnumerable<FileInfo> existingFiles) |
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{ |
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if (existingFiles == null) |
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throw new ArgumentNullException("existingFiles"); |
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Contract.EndContractBlock(); |
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|
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//Find new or matching files with a left join to the stored states |
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var fileStates = FileState.Queryable.ToList(); |
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var currentFiles = from file in existingFiles |
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join state in fileStates on file.FullName.ToLower() equals state.FilePath.ToLower() into |
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gs |
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from substate in gs.DefaultIfEmpty() |
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select Tuple.Create(file, substate); |
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|
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//To get the deleted files we must get the states that have no corresponding |
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//files. |
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//We can't use the File.Exists method inside a query, so we get all file paths from the states |
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var statePaths = (from state in fileStates |
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select new {state.Id, state.FilePath}).ToList(); |
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//and check each one |
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var missingStates = (from path in statePaths |
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where !File.Exists(path.FilePath) && !Directory.Exists(path.FilePath) |
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select path.Id).ToList(); |
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//Finally, retrieve the states that correspond to the deleted files |
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var deletedFiles = from state in fileStates |
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where missingStates.Contains(state.Id) |
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select Tuple.Create(default(FileInfo), state); |
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|
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var pairs = currentFiles.Union(deletedFiles).ToList(); |
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|
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i = 1; |
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var total = pairs.Count; |
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foreach (var pair in pairs) |
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{ |
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ProcessFile(total, pair); |
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} |
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} |
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|
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int i = 1; |
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|
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private void ProcessFile(int total, Tuple<FileInfo,FileState> pair) |
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{ |
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var idx = Interlocked.Increment(ref i); |
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using (StatusNotification.GetNotifier("Indexing file {0} of {1}", "Indexed file {0} of {1} ", idx, total)) |
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{ |
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var fileState = pair.Item2; |
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var file = pair.Item1; |
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if (fileState == null) |
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{ |
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//This is a new file |
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var createState = FileState.CreateFor(file,StatusNotification); |
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_persistenceAgent.Post(createState.Create); |
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} |
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else if (file == null) |
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{ |
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//This file was deleted while we were down. We should mark it as deleted |
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//We have to go through UpdateStatus here because the state object we are using |
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//was created by a different ORM session. |
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_persistenceAgent.Post(() => UpdateStatusDirect((Guid) fileState.Id, FileStatus.Deleted)); |
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} |
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else |
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{ |
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//This file has a matching state. Need to check for possible changes |
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//To check for changes, we use the cheap (in CPU terms) MD5 algorithm |
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//on the entire file. |
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|
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var hashString = file.ComputeShortHash(StatusNotification); |
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Debug.Assert(hashString.Length==32); |
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|
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|
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//TODO: Need a way to attach the hashes to the filestate so we don't |
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//recalculate them each time a call to calculate has is made |
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//We can either store them to the filestate or add them to a |
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//dictionary |
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|
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//If the hashes don't match the file was changed |
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if (fileState.ETag != hashString) |
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{ |
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_persistenceAgent.Post(() => UpdateStatusDirect((Guid) fileState.Id, FileStatus.Modified)); |
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} |
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} |
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} |
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} |
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|
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|
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private int UpdateStatusDirect(Guid id, FileStatus status) |
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{ |
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using (log4net.ThreadContext.Stacks["StatusAgent"].Push("UpdateStatusDirect")) |
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{ |
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|
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try |
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{ |
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using (var session = ActiveRecordMediator.GetSessionFactoryHolder().CreateSession(typeof(FileState))) |
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{ |
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var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
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walquery.List(); |
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|
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//var updatecmd = session.CreateSQLQuery( |
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var updatecmd = session.CreateQuery( |
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"update FileState set FileStatus= :fileStatus where Id = :id ") |
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.SetGuid("id", id) |
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.SetEnum("fileStatus", status); |
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var affected = updatecmd.ExecuteUpdate(); |
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|
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return affected; |
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} |
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|
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} |
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catch (Exception exc) |
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{ |
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Log.Error(exc.ToString()); |
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throw; |
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} |
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} |
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} |
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|
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private int UpdateStatusDirect(string path, FileStatus status) |
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{ |
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using (log4net.ThreadContext.Stacks["StatusAgent"].Push("UpdateStatusDirect")) |
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{ |
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|
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try |
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{ |
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using (var session = ActiveRecordMediator.GetSessionFactoryHolder().CreateSession(typeof(FileState))) |
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using (var tx=session.BeginTransaction(IsolationLevel.ReadCommitted)) |
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{ |
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|
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//var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
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var walquery = session.CreateQuery("PRAGMA journal_mode=WAL"); |
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walquery.List(); |
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|
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//var updatecmd = session.CreateSQLQuery( |
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var updatecmd = session.CreateQuery( |
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"update FileState set FileStatus= :fileStatus where FilePath = :path COLLATE NOCASE") |
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.SetString("path", path) |
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.SetEnum("fileStatus", status); |
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var affected = updatecmd.ExecuteUpdate(); |
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|
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if (affected == 0) |
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{ |
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var createdState = FileState.CreateFor(FileInfoExtensions.FromPath(path), StatusNotification); |
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createdState.FileStatus = status; |
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session.Save(createdState); |
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} |
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tx.Commit(); |
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return affected; |
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} |
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} |
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catch (Exception exc) |
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{ |
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Log.Error(exc.ToString()); |
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throw; |
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} |
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} |
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} |
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|
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private int UpdateStatusDirect(string absolutePath, FileStatus fileStatus, FileOverlayStatus overlayStatus, string conflictReason) |
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{ |
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using (log4net.ThreadContext.Stacks["StatusAgent"].Push("UpdateStatusDirect")) |
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{ |
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|
390 |
try |
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{ |
392 |
|
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using (var session = ActiveRecordMediator.GetSessionFactoryHolder().CreateSession(typeof(FileState))) |
394 |
using (var tx=session.BeginTransaction(IsolationLevel.ReadCommitted)) |
395 |
{ |
396 |
|
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//var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
398 |
var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
399 |
walquery.List(); |
400 |
|
401 |
|
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//var updatecmd = session.CreateSQLQuery("update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus,ConflictReason= :conflictReason where FilePath = :path COLLATE NOCASE") |
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var updatecmd = session.CreateQuery("update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus,ConflictReason= :conflictReason where FilePath = :path") |
404 |
.SetString("path", absolutePath) |
405 |
.SetEnum("fileStatus", fileStatus) |
406 |
.SetEnum("overlayStatus", overlayStatus) |
407 |
.SetString("conflictReason", conflictReason); |
408 |
var affected = updatecmd.ExecuteUpdate(); |
409 |
|
410 |
if (affected == 0) |
411 |
{ |
412 |
var createdState = FileState.CreateFor(FileInfoExtensions.FromPath(absolutePath), StatusNotification); |
413 |
createdState.FileStatus = fileStatus; |
414 |
createdState.OverlayStatus = overlayStatus; |
415 |
createdState.ConflictReason = conflictReason; |
416 |
createdState.LastMD5 = String.Empty; |
417 |
session.Save(createdState); |
418 |
//createdState.Create(); |
419 |
} |
420 |
tx.Commit(); |
421 |
return affected; |
422 |
} |
423 |
} |
424 |
catch (Exception exc) |
425 |
{ |
426 |
Log.Error(exc.ToString()); |
427 |
throw; |
428 |
} |
429 |
} |
430 |
} |
431 |
|
432 |
|
433 |
|
434 |
public string BlockHash { get; set; } |
435 |
|
436 |
public int BlockSize { get; set; } |
437 |
public void ChangeRoots(string oldPath, string newPath) |
438 |
{ |
439 |
if (String.IsNullOrWhiteSpace(oldPath)) |
440 |
throw new ArgumentNullException("oldPath"); |
441 |
if (!Path.IsPathRooted(oldPath)) |
442 |
throw new ArgumentException("oldPath must be an absolute path", "oldPath"); |
443 |
if (string.IsNullOrWhiteSpace(newPath)) |
444 |
throw new ArgumentNullException("newPath"); |
445 |
if (!Path.IsPathRooted(newPath)) |
446 |
throw new ArgumentException("newPath must be an absolute path", "newPath"); |
447 |
Contract.EndContractBlock(); |
448 |
|
449 |
FileState.ChangeRootPath(oldPath,newPath); |
450 |
|
451 |
} |
452 |
|
453 |
|
454 |
|
455 |
private readonly string _pithosDataPath; |
456 |
|
457 |
|
458 |
public FileState GetStateByFilePath(string path) |
459 |
{ |
460 |
if (String.IsNullOrWhiteSpace(path)) |
461 |
throw new ArgumentNullException("path"); |
462 |
if (!Path.IsPathRooted(path)) |
463 |
throw new ArgumentException("The path must be rooted", "path"); |
464 |
Contract.EndContractBlock(); |
465 |
|
466 |
try |
467 |
{ |
468 |
|
469 |
using (var connection = GetConnection()) |
470 |
using (var command = new SQLiteCommand("select Id, FilePath, OverlayStatus,FileStatus ,Checksum ,ETag,Version ,VersionTimeStamp,IsShared ,SharedBy ,ShareWrite, LastMD5,LastLength,LastWriteDate from FileState where FilePath=:path COLLATE NOCASE", connection)) |
471 |
{ |
472 |
|
473 |
command.Parameters.AddWithValue("path", path); |
474 |
|
475 |
using (var reader = command.ExecuteReader()) |
476 |
{ |
477 |
if (reader.Read()) |
478 |
{ |
479 |
//var values = new object[reader.FieldCount]; |
480 |
//reader.GetValues(values); |
481 |
var state = new FileState |
482 |
{ |
483 |
Id = reader.GetGuid(0), |
484 |
FilePath = reader.IsDBNull(1)?"":reader.GetString(1), |
485 |
OverlayStatus =reader.IsDBNull(2)?FileOverlayStatus.Unversioned: (FileOverlayStatus) reader.GetInt64(2), |
486 |
FileStatus = reader.IsDBNull(3)?FileStatus.Missing:(FileStatus) reader.GetInt64(3), |
487 |
Checksum = reader.IsDBNull(4)?"":reader.GetString(4), |
488 |
ETag= reader.IsDBNull(5)?"":reader.GetString(5), |
489 |
Version = reader.IsDBNull(6)?default(long):reader.GetInt64(6), |
490 |
VersionTimeStamp = reader.IsDBNull(7)?default(DateTime):reader.GetDateTime(7), |
491 |
IsShared = !reader.IsDBNull(8) && reader.GetBoolean(8), |
492 |
SharedBy = reader.IsDBNull(9)?"":reader.GetString(9), |
493 |
ShareWrite = !reader.IsDBNull(10) && reader.GetBoolean(10), |
494 |
LastMD5=reader.GetString(11), |
495 |
LastLength=reader.IsDBNull(12)? default(long):reader.GetInt64(12), |
496 |
LastWriteDate=reader.IsDBNull(13)?default(DateTime):reader.GetDateTime(13) |
497 |
}; |
498 |
|
499 |
return state; |
500 |
} |
501 |
else |
502 |
{ |
503 |
return null; |
504 |
} |
505 |
|
506 |
} |
507 |
} |
508 |
} |
509 |
catch (Exception exc) |
510 |
{ |
511 |
Log.ErrorFormat(exc.ToString()); |
512 |
throw; |
513 |
} |
514 |
} |
515 |
|
516 |
public FileOverlayStatus GetFileOverlayStatus(string path) |
517 |
{ |
518 |
if (String.IsNullOrWhiteSpace(path)) |
519 |
throw new ArgumentNullException("path"); |
520 |
if (!Path.IsPathRooted(path)) |
521 |
throw new ArgumentException("The path must be rooted", "path"); |
522 |
Contract.EndContractBlock(); |
523 |
|
524 |
try |
525 |
{ |
526 |
|
527 |
using (var connection = GetConnection()) |
528 |
using (var command = new SQLiteCommand("select OverlayStatus from FileState where FilePath=:path COLLATE NOCASE", connection)) |
529 |
{ |
530 |
|
531 |
command.Parameters.AddWithValue("path", path); |
532 |
|
533 |
var s = command.ExecuteScalar(); |
534 |
return (FileOverlayStatus) Convert.ToInt32(s); |
535 |
} |
536 |
} |
537 |
catch (Exception exc) |
538 |
{ |
539 |
Log.ErrorFormat(exc.ToString()); |
540 |
return FileOverlayStatus.Unversioned; |
541 |
} |
542 |
} |
543 |
|
544 |
private string GetConnectionString() |
545 |
{ |
546 |
var connectionString = String.Format(@"Data Source={0}\pithos.db;Version=3;Enlist=N;Pooling=True", _pithosDataPath); |
547 |
return connectionString; |
548 |
} |
549 |
|
550 |
private SQLiteConnection GetConnection() |
551 |
{ |
552 |
var connectionString = GetConnectionString(); |
553 |
var connection = new SQLiteConnection(connectionString); |
554 |
connection.Open(); |
555 |
using(var cmd =connection.CreateCommand()) |
556 |
{ |
557 |
cmd.CommandText = "PRAGMA journal_mode=WAL"; |
558 |
cmd.ExecuteNonQuery(); |
559 |
} |
560 |
return connection; |
561 |
} |
562 |
|
563 |
/* public void SetFileOverlayStatus(string path, FileOverlayStatus overlayStatus) |
564 |
{ |
565 |
if (String.IsNullOrWhiteSpace(path)) |
566 |
throw new ArgumentNullException("path"); |
567 |
if (!Path.IsPathRooted(path)) |
568 |
throw new ArgumentException("The path must be rooted","path"); |
569 |
Contract.EndContractBlock(); |
570 |
|
571 |
_persistenceAgent.Post(() => FileState.StoreOverlayStatus(path,overlayStatus)); |
572 |
}*/ |
573 |
|
574 |
public Task SetFileOverlayStatus(string path, FileOverlayStatus overlayStatus, string etag = null) |
575 |
{ |
576 |
if (String.IsNullOrWhiteSpace(path)) |
577 |
throw new ArgumentNullException("path"); |
578 |
if (!Path.IsPathRooted(path)) |
579 |
throw new ArgumentException("The path must be rooted","path"); |
580 |
Contract.EndContractBlock(); |
581 |
|
582 |
return _persistenceAgent.PostAndAwait(() => FileState.StoreOverlayStatus(path,overlayStatus,etag)); |
583 |
} |
584 |
|
585 |
/* public void RenameFileOverlayStatus(string oldPath, string newPath) |
586 |
{ |
587 |
if (String.IsNullOrWhiteSpace(oldPath)) |
588 |
throw new ArgumentNullException("oldPath"); |
589 |
if (!Path.IsPathRooted(oldPath)) |
590 |
throw new ArgumentException("The oldPath must be rooted", "oldPath"); |
591 |
if (String.IsNullOrWhiteSpace(newPath)) |
592 |
throw new ArgumentNullException("newPath"); |
593 |
if (!Path.IsPathRooted(newPath)) |
594 |
throw new ArgumentException("The newPath must be rooted", "newPath"); |
595 |
Contract.EndContractBlock(); |
596 |
|
597 |
_persistenceAgent.Post(() =>FileState.RenameState(oldPath, newPath)); |
598 |
}*/ |
599 |
|
600 |
public void SetFileState(string path, FileStatus fileStatus, FileOverlayStatus overlayStatus, string conflictReason) |
601 |
{ |
602 |
if (String.IsNullOrWhiteSpace(path)) |
603 |
throw new ArgumentNullException("path"); |
604 |
if (!Path.IsPathRooted(path)) |
605 |
throw new ArgumentException("The path must be rooted", "path"); |
606 |
Contract.EndContractBlock(); |
607 |
|
608 |
Debug.Assert(!path.Contains(FolderConstants.CacheFolder)); |
609 |
Debug.Assert(!path.EndsWith(".ignore")); |
610 |
|
611 |
_persistenceAgent.Post(() => UpdateStatusDirect(path, fileStatus, overlayStatus, conflictReason)); |
612 |
} |
613 |
|
614 |
|
615 |
public void StoreInfo(string path, ObjectInfo objectInfo) |
616 |
{ |
617 |
if (String.IsNullOrWhiteSpace(path)) |
618 |
throw new ArgumentNullException("path"); |
619 |
if (!Path.IsPathRooted(path)) |
620 |
throw new ArgumentException("The path must be rooted", "path"); |
621 |
if (objectInfo == null) |
622 |
throw new ArgumentNullException("objectInfo", "objectInfo can't be empty"); |
623 |
Contract.EndContractBlock(); |
624 |
|
625 |
_persistenceAgent.Post(() => StoreInfoDirect(path, objectInfo)); |
626 |
|
627 |
} |
628 |
|
629 |
private void StoreInfoDirect(string path, ObjectInfo objectInfo) |
630 |
{ |
631 |
try |
632 |
{ |
633 |
using (var session = ActiveRecordMediator.GetSessionFactoryHolder().CreateSession(typeof(FileState))) |
634 |
using (var tx=session.BeginTransaction(IsolationLevel.ReadCommitted)) |
635 |
{ |
636 |
|
637 |
//var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
638 |
var walquery = session.CreateSQLQuery("PRAGMA journal_mode=WAL"); |
639 |
walquery.List(); |
640 |
|
641 |
Func<IQuery, IQuery> setCriteria = q => q |
642 |
.SetString("path", path) |
643 |
.SetString("checksum",objectInfo.X_Object_Hash) |
644 |
.SetString("etag", objectInfo.ETag) |
645 |
.SetInt64("version", objectInfo.Version.GetValueOrDefault()) |
646 |
.SetDateTime("versionTimeStamp",objectInfo.VersionTimestamp.GetValueOrDefault()) |
647 |
.SetEnum("fileStatus", FileStatus.Unchanged) |
648 |
.SetEnum("overlayStatus",FileOverlayStatus.Normal) |
649 |
.SetString("objectID", objectInfo.UUID); |
650 |
//IQuery updatecmd = session.CreateSQLQuery( |
651 |
IQuery updatecmd = session.CreateQuery( |
652 |
"update FileState set FilePath=:path,FileStatus= :fileStatus,OverlayStatus= :overlayStatus, Checksum=:checksum, ETag=:etag,LastMD5=:etag,Version=:version,VersionTimeStamp=:versionTimeStamp where ObjectID = :objectID "); |
653 |
updatecmd = setCriteria(updatecmd); |
654 |
var affected = updatecmd.ExecuteUpdate(); |
655 |
|
656 |
//If the ID exists, update the status |
657 |
if (affected == 0) |
658 |
{ |
659 |
//If the ID doesn't exist, try to update using the path, and store the ID as well. |
660 |
//updatecmd = session.CreateSQLQuery( |
661 |
updatecmd = session.CreateQuery( |
662 |
// "update FileState set FileStatus= :fileStatus,OverlayStatus= :overlayStatus, ObjectID=:objectID, Checksum=:checksum, ETag=:etag,LastMD5=:etag,Version=:version,VersionTimeStamp=:versionTimeStamp where FilePath = :path COLLATE NOCASE "); |
663 |
"update FileState set FileStatus= :fileStatus,OverlayStatus= :overlayStatus, ObjectID=:objectID, Checksum=:checksum, ETag=:etag,LastMD5=:etag,Version=:version,VersionTimeStamp=:versionTimeStamp where FilePath = :path"); |
664 |
updatecmd=setCriteria(updatecmd); |
665 |
affected = updatecmd.ExecuteUpdate(); |
666 |
} |
667 |
if (affected==0) |
668 |
{ |
669 |
//IQuery insertCmd=session.CreateSQLQuery( |
670 |
IQuery insertCmd = session.CreateSQLQuery( |
671 |
"INSERT INTO FileState (Id,FilePath,Checksum,Version,VersionTimeStamp,ETag,LastMD5,FileStatus,OverlayStatus,ObjectID) VALUES (:id,:path,:checksum,:version,:versionTimeStamp,:etag,:etag,:fileStatus,:overlayStatus,:objectID)"); |
672 |
insertCmd=setCriteria(insertCmd).SetGuid("id", Guid.NewGuid()); |
673 |
affected = insertCmd.ExecuteUpdate(); |
674 |
} |
675 |
tx.Commit(); |
676 |
} |
677 |
} |
678 |
catch (Exception exc) |
679 |
{ |
680 |
Log.ErrorFormat("Failed to update [{0}]:[{1}]\r\n{2}",path,objectInfo.UUID, exc); |
681 |
throw; |
682 |
} |
683 |
} |
684 |
|
685 |
private bool StateExists(string filePath,SQLiteConnection connection) |
686 |
{ |
687 |
using (var command = new SQLiteCommand("Select count(*) from FileState where FilePath=:path COLLATE NOCASE", connection)) |
688 |
{ |
689 |
command.Parameters.AddWithValue("path", filePath); |
690 |
var result = command.ExecuteScalar(); |
691 |
return ((long)result >= 1); |
692 |
} |
693 |
|
694 |
} |
695 |
|
696 |
private bool StateExistsByID(string objectId,SQLiteConnection connection) |
697 |
{ |
698 |
using (var command = new SQLiteCommand("Select count(*) from FileState where ObjectId=:id", connection)) |
699 |
{ |
700 |
command.Parameters.AddWithValue("id", objectId); |
701 |
var result = command.ExecuteScalar(); |
702 |
return ((long)result >= 1); |
703 |
} |
704 |
|
705 |
} |
706 |
|
707 |
public void SetFileStatus(string path, FileStatus status) |
708 |
{ |
709 |
if (String.IsNullOrWhiteSpace(path)) |
710 |
throw new ArgumentNullException("path"); |
711 |
if (!Path.IsPathRooted(path)) |
712 |
throw new ArgumentException("The path must be rooted", "path"); |
713 |
Contract.EndContractBlock(); |
714 |
|
715 |
_persistenceAgent.Post(() => UpdateStatusDirect(path, status)); |
716 |
} |
717 |
|
718 |
public FileStatus GetFileStatus(string path) |
719 |
{ |
720 |
if (String.IsNullOrWhiteSpace(path)) |
721 |
throw new ArgumentNullException("path"); |
722 |
if (!Path.IsPathRooted(path)) |
723 |
throw new ArgumentException("The path must be rooted", "path"); |
724 |
Contract.EndContractBlock(); |
725 |
|
726 |
|
727 |
using (var connection = GetConnection()) |
728 |
{ |
729 |
var command = new SQLiteCommand("select FileStatus from FileState where FilePath=:path COLLATE NOCASE", connection); |
730 |
command.Parameters.AddWithValue("path", path); |
731 |
|
732 |
var statusValue = command.ExecuteScalar(); |
733 |
if (statusValue==null) |
734 |
return FileStatus.Missing; |
735 |
return (FileStatus)Convert.ToInt32(statusValue); |
736 |
} |
737 |
} |
738 |
|
739 |
/// <summary> |
740 |
/// Deletes the status of the specified file |
741 |
/// </summary> |
742 |
/// <param name="path"></param> |
743 |
public void ClearFileStatus(string path) |
744 |
{ |
745 |
if (String.IsNullOrWhiteSpace(path)) |
746 |
throw new ArgumentNullException("path"); |
747 |
if (!Path.IsPathRooted(path)) |
748 |
throw new ArgumentException("The path must be rooted", "path"); |
749 |
Contract.EndContractBlock(); |
750 |
|
751 |
_persistenceAgent.Post(() => DeleteDirect(path)); |
752 |
} |
753 |
|
754 |
/// <summary> |
755 |
/// Deletes the status of the specified folder and all its contents |
756 |
/// </summary> |
757 |
/// <param name="path"></param> |
758 |
public void ClearFolderStatus(string path) |
759 |
{ |
760 |
if (String.IsNullOrWhiteSpace(path)) |
761 |
throw new ArgumentNullException("path"); |
762 |
if (!Path.IsPathRooted(path)) |
763 |
throw new ArgumentException("The path must be rooted", "path"); |
764 |
Contract.EndContractBlock(); |
765 |
//TODO: May throw if the agent is cleared for some reason. Should never happen |
766 |
_persistenceAgent.Post(() => DeleteFolderDirect(path)); |
767 |
} |
768 |
|
769 |
public IEnumerable<FileState> GetChildren(FileState fileState) |
770 |
{ |
771 |
if (fileState == null) |
772 |
throw new ArgumentNullException("fileState"); |
773 |
Contract.EndContractBlock(); |
774 |
|
775 |
var children = from state in FileState.Queryable |
776 |
where state.FilePath.StartsWith(fileState.FilePath + "\\") |
777 |
select state; |
778 |
return children; |
779 |
} |
780 |
|
781 |
public void EnsureFileState(string path) |
782 |
{ |
783 |
var existingState = GetStateByFilePath(path); |
784 |
if (existingState != null) |
785 |
return; |
786 |
var fileInfo = FileInfoExtensions.FromPath(path); |
787 |
using (new SessionScope()) |
788 |
{ |
789 |
var newState = FileState.CreateFor(fileInfo,StatusNotification); |
790 |
newState.FileStatus=FileStatus.Missing; |
791 |
_persistenceAgent.PostAndAwait(newState.CreateAndFlush).Wait(); |
792 |
} |
793 |
|
794 |
} |
795 |
|
796 |
private int DeleteDirect(string filePath) |
797 |
{ |
798 |
using (log4net.ThreadContext.Stacks["StatusAgent"].Push("DeleteDirect")) |
799 |
{ |
800 |
|
801 |
try |
802 |
{ |
803 |
|
804 |
|
805 |
using (var connection = GetConnection()) |
806 |
{ |
807 |
var command = new SQLiteCommand("delete from FileState where FilePath = :path COLLATE NOCASE", |
808 |
connection); |
809 |
|
810 |
command.Parameters.AddWithValue("path", filePath); |
811 |
|
812 |
var affected = command.ExecuteNonQuery(); |
813 |
return affected; |
814 |
} |
815 |
} |
816 |
catch (Exception exc) |
817 |
{ |
818 |
Log.Error(exc.ToString()); |
819 |
throw; |
820 |
} |
821 |
} |
822 |
} |
823 |
|
824 |
private int DeleteFolderDirect(string filePath) |
825 |
{ |
826 |
using (log4net.ThreadContext.Stacks["StatusAgent"].Push("DeleteDirect")) |
827 |
{ |
828 |
|
829 |
try |
830 |
{ |
831 |
|
832 |
|
833 |
using (var connection = GetConnection()) |
834 |
{ |
835 |
var command = new SQLiteCommand(@"delete from FileState where FilePath = :path or FilePath like :path || '\%' COLLATE NOCASE", |
836 |
connection); |
837 |
|
838 |
command.Parameters.AddWithValue("path", filePath); |
839 |
|
840 |
var affected = command.ExecuteNonQuery(); |
841 |
return affected; |
842 |
} |
843 |
} |
844 |
catch (Exception exc) |
845 |
{ |
846 |
Log.Error(exc.ToString()); |
847 |
throw; |
848 |
} |
849 |
} |
850 |
} |
851 |
|
852 |
public void UpdateFileChecksum(string path, string etag, string checksum) |
853 |
{ |
854 |
if (String.IsNullOrWhiteSpace(path)) |
855 |
throw new ArgumentNullException("path"); |
856 |
if (!Path.IsPathRooted(path)) |
857 |
throw new ArgumentException("The path must be rooted", "path"); |
858 |
Contract.EndContractBlock(); |
859 |
|
860 |
_persistenceAgent.Post(() => FileState.UpdateChecksum(path, etag,checksum)); |
861 |
} |
862 |
|
863 |
public void UpdateLastMD5(FileInfo file, string etag) |
864 |
{ |
865 |
if (file==null) |
866 |
throw new ArgumentNullException("file"); |
867 |
if (String.IsNullOrWhiteSpace(etag)) |
868 |
throw new ArgumentNullException("etag"); |
869 |
Contract.EndContractBlock(); |
870 |
|
871 |
_persistenceAgent.Post(() => FileState.UpdateLastMD5(file, etag)); |
872 |
} |
873 |
|
874 |
|
875 |
public void CleanupOrphanStates() |
876 |
{ |
877 |
//Orphan states are those that do not correspond to an account, ie. their paths |
878 |
//do not start with the root path of any registered account |
879 |
|
880 |
var roots=(from account in Settings.Accounts |
881 |
select account.RootPath).ToList(); |
882 |
|
883 |
var allStates = from state in FileState.Queryable |
884 |
select state.FilePath; |
885 |
|
886 |
foreach (var statePath in allStates) |
887 |
{ |
888 |
if (!roots.Any(root=>statePath.StartsWith(root,StringComparison.InvariantCultureIgnoreCase))) |
889 |
this.DeleteDirect(statePath); |
890 |
} |
891 |
} |
892 |
|
893 |
public void CleanupStaleStates(AccountInfo accountInfo, List<ObjectInfo> objectInfos) |
894 |
{ |
895 |
if (accountInfo == null) |
896 |
throw new ArgumentNullException("accountInfo"); |
897 |
if (objectInfos == null) |
898 |
throw new ArgumentNullException("objectInfos"); |
899 |
Contract.EndContractBlock(); |
900 |
|
901 |
|
902 |
|
903 |
//Stale states are those that have no corresponding local or server file |
904 |
|
905 |
|
906 |
var agent=FileAgent.GetFileAgent(accountInfo); |
907 |
|
908 |
var localFiles=agent.EnumerateFiles(); |
909 |
var localSet = new HashSet<string>(localFiles); |
910 |
|
911 |
//RelativeUrlToFilePath will fail for |
912 |
//infos of accounts, containers which have no Name |
913 |
|
914 |
var serverFiles = from info in objectInfos |
915 |
where info.Name != null |
916 |
select Path.Combine(accountInfo.AccountPath,info.RelativeUrlToFilePath(accountInfo.UserName)); |
917 |
var serverSet = new HashSet<string>(serverFiles); |
918 |
|
919 |
var allStates = from state in FileState.Queryable |
920 |
where state.FilePath.StartsWith(agent.RootPath) |
921 |
select state.FilePath; |
922 |
var stateSet = new HashSet<string>(allStates); |
923 |
stateSet.ExceptWith(serverSet); |
924 |
stateSet.ExceptWith(localSet); |
925 |
|
926 |
foreach (var remainder in stateSet) |
927 |
{ |
928 |
DeleteDirect(remainder); |
929 |
} |
930 |
|
931 |
|
932 |
} |
933 |
} |
934 |
|
935 |
|
936 |
} |